# writeJsonSync(file, object, [options]) Writes an object to a JSON file. **Alias:** `writeJSONSync()` - `file` `` - `object` `` - `options` `` - `spaces` `` Number of spaces to indent; or a string to use for indentation (i.e. pass `'\t'` for tab indentation). See [the docs](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#The_space_argument) for more info. - `EOL` `` Set EOL character. Default is `\n`. - `replacer` [JSON replacer](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#The_replacer_parameter) - Also accepts [`fs.writeFileSync` options](https://nodejs.org/api/fs.html#fs_fs_writefilesync_file_data_options) ## Example: ```js const fs = require('fs-extra') fs.writeJsonSync('./package.json', {name: 'fs-extra'}) ``` --- **See also:** [`outputJsonSync()`](outputJson-sync.md)